<template>
  <div>
    <!-- 底部部分 -->
    <footer class="footer">
      <span class="todo-count"><strong>{{sum}}</strong>剩余</span>
      <ul class="filters">
        <li>
          <a :class="{selected:type==='all'}"
             @click="changeType('all')"
             href="#/">全部</a>
        </li>
        <li>
          <a :class="{selected:type==='active'}"
             @click="changeType('active')"
             href="#/active">进行中</a>
        </li>
        <li>
          <a :class="{selected:type==='completed'}"
             @click="changeType(completed)"
             href="#/completed">已完成</a>
        </li>
      </ul>
      <button class="clear-completed"
              v-show="showClearBtn"
              @click="delAll">清除已完成</button>
    </footer>
  </div>
</template>

<script>
export default {
  props: {
    list: {
      type: Array,
      required: true,
    },
    sum: {
      type: Number,
      required: true,
    },
    showClearBtn: {
      type: Boolean,
      required: true
    },
    type: {
      type: String,
      required: true
    }
  },
  methods: {
    delAll () {
      this.$emit('delAll')
    },
    changeType(value){
      this.$emit('changeType',value)
    }
  }
}
</script>

<style scoped></style>
